From b8494591d1b1a143f3b192d845c238bbf3bc629d Mon Sep 17 00:00:00 2001
From: Kenny Root <kroot@google.com>
Date: Fri, 25 Sep 2015 02:29:14 +0000
Subject: Revert "Revert "external/boringssl: sync with upstream.""

This reverts commit a04d78d392463df4e69a64360c952ffa5abd22f7.

Underlying issue was fixed.

Change-Id: I49685b653d16e728eb38e79e02b2c33ddeefed88
---
 linux-aarch64/crypto/aes/aesv8-armx64.S | 751 ++++++++++++++++++++++++++++++++
 1 file changed, 751 insertions(+)
 create mode 100644 linux-aarch64/crypto/aes/aesv8-armx64.S

(limited to 'linux-aarch64/crypto/aes/aesv8-armx64.S')

diff --git a/linux-aarch64/crypto/aes/aesv8-armx64.S b/linux-aarch64/crypto/aes/aesv8-armx64.S
new file mode 100644
index 0000000..fa2abbc
--- /dev/null
+++ b/linux-aarch64/crypto/aes/aesv8-armx64.S
@@ -0,0 +1,751 @@
+#if defined(__aarch64__)
+#include <openssl/arm_arch.h>
+
+#if __ARM_MAX_ARCH__>=7
+.text
+#if !defined(__clang__)
+.arch	armv8-a+crypto
+#endif
+.align	5
+.Lrcon:
+.long	0x01,0x01,0x01,0x01
+.long	0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d	// rotate-n-splat
+.long	0x1b,0x1b,0x1b,0x1b
+
+.globl	aes_v8_set_encrypt_key
+.type	aes_v8_set_encrypt_key,%function
+.align	5
+aes_v8_set_encrypt_key:
+.Lenc_key:
+	stp	x29,x30,[sp,#-16]!
+	add	x29,sp,#0
+	mov	x3,#-1
+	cmp	x0,#0
+	b.eq	.Lenc_key_abort
+	cmp	x2,#0
+	b.eq	.Lenc_key_abort
+	mov	x3,#-2
+	cmp	w1,#128
+	b.lt	.Lenc_key_abort
+	cmp	w1,#256
+	b.gt	.Lenc_key_abort
+	tst	w1,#0x3f
+	b.ne	.Lenc_key_abort
+
+	adr	x3,.Lrcon
+	cmp	w1,#192
+
+	eor	v0.16b,v0.16b,v0.16b
+	ld1	{v3.16b},[x0],#16
+	mov	w1,#8		// reuse w1
+	ld1	{v1.4s,v2.4s},[x3],#32
+
+	b.lt	.Loop128
+	b.eq	.L192
+	b	.L256
+
+.align	4
+.Loop128:
+	tbl	v6.16b,{v3.16b},v2.16b
+	ext	v5.16b,v0.16b,v3.16b,#12
+	st1	{v3.4s},[x2],#16
+	aese	v6.16b,v0.16b
+	subs	w1,w1,#1
+
+	eor	v3.16b,v3.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v3.16b,v3.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v6.16b,v6.16b,v1.16b
+	eor	v3.16b,v3.16b,v5.16b
+	shl	v1.16b,v1.16b,#1
+	eor	v3.16b,v3.16b,v6.16b
+	b.ne	.Loop128
+
+	ld1	{v1.4s},[x3]
+
+	tbl	v6.16b,{v3.16b},v2.16b
+	ext	v5.16b,v0.16b,v3.16b,#12
+	st1	{v3.4s},[x2],#16
+	aese	v6.16b,v0.16b
+
+	eor	v3.16b,v3.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v3.16b,v3.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v6.16b,v6.16b,v1.16b
+	eor	v3.16b,v3.16b,v5.16b
+	shl	v1.16b,v1.16b,#1
+	eor	v3.16b,v3.16b,v6.16b
+
+	tbl	v6.16b,{v3.16b},v2.16b
+	ext	v5.16b,v0.16b,v3.16b,#12
+	st1	{v3.4s},[x2],#16
+	aese	v6.16b,v0.16b
+
+	eor	v3.16b,v3.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v3.16b,v3.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v6.16b,v6.16b,v1.16b
+	eor	v3.16b,v3.16b,v5.16b
+	eor	v3.16b,v3.16b,v6.16b
+	st1	{v3.4s},[x2]
+	add	x2,x2,#0x50
+
+	mov	w12,#10
+	b	.Ldone
+
+.align	4
+.L192:
+	ld1	{v4.8b},[x0],#8
+	movi	v6.16b,#8			// borrow v6.16b
+	st1	{v3.4s},[x2],#16
+	sub	v2.16b,v2.16b,v6.16b	// adjust the mask
+
+.Loop192:
+	tbl	v6.16b,{v4.16b},v2.16b
+	ext	v5.16b,v0.16b,v3.16b,#12
+	st1	{v4.8b},[x2],#8
+	aese	v6.16b,v0.16b
+	subs	w1,w1,#1
+
+	eor	v3.16b,v3.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v3.16b,v3.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v3.16b,v3.16b,v5.16b
+
+	dup	v5.4s,v3.s[3]
+	eor	v5.16b,v5.16b,v4.16b
+	eor	v6.16b,v6.16b,v1.16b
+	ext	v4.16b,v0.16b,v4.16b,#12
+	shl	v1.16b,v1.16b,#1
+	eor	v4.16b,v4.16b,v5.16b
+	eor	v3.16b,v3.16b,v6.16b
+	eor	v4.16b,v4.16b,v6.16b
+	st1	{v3.4s},[x2],#16
+	b.ne	.Loop192
+
+	mov	w12,#12
+	add	x2,x2,#0x20
+	b	.Ldone
+
+.align	4
+.L256:
+	ld1	{v4.16b},[x0]
+	mov	w1,#7
+	mov	w12,#14
+	st1	{v3.4s},[x2],#16
+
+.Loop256:
+	tbl	v6.16b,{v4.16b},v2.16b
+	ext	v5.16b,v0.16b,v3.16b,#12
+	st1	{v4.4s},[x2],#16
+	aese	v6.16b,v0.16b
+	subs	w1,w1,#1
+
+	eor	v3.16b,v3.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v3.16b,v3.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v6.16b,v6.16b,v1.16b
+	eor	v3.16b,v3.16b,v5.16b
+	shl	v1.16b,v1.16b,#1
+	eor	v3.16b,v3.16b,v6.16b
+	st1	{v3.4s},[x2],#16
+	b.eq	.Ldone
+
+	dup	v6.4s,v3.s[3]		// just splat
+	ext	v5.16b,v0.16b,v4.16b,#12
+	aese	v6.16b,v0.16b
+
+	eor	v4.16b,v4.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v4.16b,v4.16b,v5.16b
+	ext	v5.16b,v0.16b,v5.16b,#12
+	eor	v4.16b,v4.16b,v5.16b
+
+	eor	v4.16b,v4.16b,v6.16b
+	b	.Loop256
+
+.Ldone:
+	str	w12,[x2]
+	mov	x3,#0
+
+.Lenc_key_abort:
+	mov	x0,x3			// return value
+	ldr	x29,[sp],#16
+	ret
+.size	aes_v8_set_encrypt_key,.-aes_v8_set_encrypt_key
+
+.globl	aes_v8_set_decrypt_key
+.type	aes_v8_set_decrypt_key,%function
+.align	5
+aes_v8_set_decrypt_key:
+	stp	x29,x30,[sp,#-16]!
+	add	x29,sp,#0
+	bl	.Lenc_key
+
+	cmp	x0,#0
+	b.ne	.Ldec_key_abort
+
+	sub	x2,x2,#240		// restore original x2
+	mov	x4,#-16
+	add	x0,x2,x12,lsl#4	// end of key schedule
+
+	ld1	{v0.4s},[x2]
+	ld1	{v1.4s},[x0]
+	st1	{v0.4s},[x0],x4
+	st1	{v1.4s},[x2],#16
+
+.Loop_imc:
+	ld1	{v0.4s},[x2]
+	ld1	{v1.4s},[x0]
+	aesimc	v0.16b,v0.16b
+	aesimc	v1.16b,v1.16b
+	st1	{v0.4s},[x0],x4
+	st1	{v1.4s},[x2],#16
+	cmp	x0,x2
+	b.hi	.Loop_imc
+
+	ld1	{v0.4s},[x2]
+	aesimc	v0.16b,v0.16b
+	st1	{v0.4s},[x0]
+
+	eor	x0,x0,x0		// return value
+.Ldec_key_abort:
+	ldp	x29,x30,[sp],#16
+	ret
+.size	aes_v8_set_decrypt_key,.-aes_v8_set_decrypt_key
+.globl	aes_v8_encrypt
+.type	aes_v8_encrypt,%function
+.align	5
+aes_v8_encrypt:
+	ldr	w3,[x2,#240]
+	ld1	{v0.4s},[x2],#16
+	ld1	{v2.16b},[x0]
+	sub	w3,w3,#2
+	ld1	{v1.4s},[x2],#16
+
+.Loop_enc:
+	aese	v2.16b,v0.16b
+	aesmc	v2.16b,v2.16b
+	ld1	{v0.4s},[x2],#16
+	subs	w3,w3,#2
+	aese	v2.16b,v1.16b
+	aesmc	v2.16b,v2.16b
+	ld1	{v1.4s},[x2],#16
+	b.gt	.Loop_enc
+
+	aese	v2.16b,v0.16b
+	aesmc	v2.16b,v2.16b
+	ld1	{v0.4s},[x2]
+	aese	v2.16b,v1.16b
+	eor	v2.16b,v2.16b,v0.16b
+
+	st1	{v2.16b},[x1]
+	ret
+.size	aes_v8_encrypt,.-aes_v8_encrypt
+.globl	aes_v8_decrypt
+.type	aes_v8_decrypt,%function
+.align	5
+aes_v8_decrypt:
+	ldr	w3,[x2,#240]
+	ld1	{v0.4s},[x2],#16
+	ld1	{v2.16b},[x0]
+	sub	w3,w3,#2
+	ld1	{v1.4s},[x2],#16
+
+.Loop_dec:
+	aesd	v2.16b,v0.16b
+	aesimc	v2.16b,v2.16b
+	ld1	{v0.4s},[x2],#16
+	subs	w3,w3,#2
+	aesd	v2.16b,v1.16b
+	aesimc	v2.16b,v2.16b
+	ld1	{v1.4s},[x2],#16
+	b.gt	.Loop_dec
+
+	aesd	v2.16b,v0.16b
+	aesimc	v2.16b,v2.16b
+	ld1	{v0.4s},[x2]
+	aesd	v2.16b,v1.16b
+	eor	v2.16b,v2.16b,v0.16b
+
+	st1	{v2.16b},[x1]
+	ret
+.size	aes_v8_decrypt,.-aes_v8_decrypt
+.globl	aes_v8_cbc_encrypt
+.type	aes_v8_cbc_encrypt,%function
+.align	5
+aes_v8_cbc_encrypt:
+	stp	x29,x30,[sp,#-16]!
+	add	x29,sp,#0
+	subs	x2,x2,#16
+	mov	x8,#16
+	b.lo	.Lcbc_abort
+	csel	x8,xzr,x8,eq
+
+	cmp	w5,#0			// en- or decrypting?
+	ldr	w5,[x3,#240]
+	and	x2,x2,#-16
+	ld1	{v6.16b},[x4]
+	ld1	{v0.16b},[x0],x8
+
+	ld1	{v16.4s,v17.4s},[x3]		// load key schedule...
+	sub	w5,w5,#6
+	add	x7,x3,x5,lsl#4	// pointer to last 7 round keys
+	sub	w5,w5,#2
+	ld1	{v18.4s,v19.4s},[x7],#32
+	ld1	{v20.4s,v21.4s},[x7],#32
+	ld1	{v22.4s,v23.4s},[x7],#32
+	ld1	{v7.4s},[x7]
+
+	add	x7,x3,#32
+	mov	w6,w5
+	b.eq	.Lcbc_dec
+
+	cmp	w5,#2
+	eor	v0.16b,v0.16b,v6.16b
+	eor	v5.16b,v16.16b,v7.16b
+	b.eq	.Lcbc_enc128
+
+	ld1	{v2.4s,v3.4s},[x7]
+	add	x7,x3,#16
+	add	x6,x3,#16*4
+	add	x12,x3,#16*5
+	aese	v0.16b,v16.16b
+	aesmc	v0.16b,v0.16b
+	add	x14,x3,#16*6
+	add	x3,x3,#16*7
+	b	.Lenter_cbc_enc
+
+.align	4
+.Loop_cbc_enc:
+	aese	v0.16b,v16.16b
+	aesmc	v0.16b,v0.16b
+	st1	{v6.16b},[x1],#16
+.Lenter_cbc_enc:
+	aese	v0.16b,v17.16b
+	aesmc	v0.16b,v0.16b
+	aese	v0.16b,v2.16b
+	aesmc	v0.16b,v0.16b
+	ld1	{v16.4s},[x6]
+	cmp	w5,#4
+	aese	v0.16b,v3.16b
+	aesmc	v0.16b,v0.16b
+	ld1	{v17.4s},[x12]
+	b.eq	.Lcbc_enc192
+
+	aese	v0.16b,v16.16b
+	aesmc	v0.16b,v0.16b
+	ld1	{v16.4s},[x14]
+	aese	v0.16b,v17.16b
+	aesmc	v0.16b,v0.16b
+	ld1	{v17.4s},[x3]
+	nop
+
+.Lcbc_enc192:
+	aese	v0.16b,v16.16b
+	aesmc	v0.16b,v0.16b
+	subs	x2,x2,#16
+	aese	v0.16b,v17.16b
+	aesmc	v0.16b,v0.16b
+	csel	x8,xzr,x8,eq
+	aese	v0.16b,v18.16b
+	aesmc	v0.16b,v0.16b
+	aese	v0.16b,v19.16b
+	aesmc	v0.16b,v0.16b
+	ld1	{v16.16b},[x0],x8
+	aese	v0.16b,v20.16b
+	aesmc	v0.16b,v0.16b
+	eor	v16.16b,v16.16b,v5.16b
+	aese	v0.16b,v21.16b
+	aesmc	v0.16b,v0.16b
+	ld1	{v17.4s},[x7]		// re-pre-load rndkey[1]
+	aese	v0.16b,v22.16b
+	aesmc	v0.16b,v0.16b
+	aese	v0.16b,v23.16b
+	eor	v6.16b,v0.16b,v7.16b
+	b.hs	.Loop_cbc_enc
+
+	st1	{v6.16b},[x1],#16
+	b	.Lcbc_done
+
+.align	5
+.Lcbc_enc128:
+	ld1	{v2.4s,v3.4s},[x7]
+	aese	v0.16b,v16.16b
+	aesmc	v0.16b,v0.16b
+	b	.Lenter_cbc_enc128
+.Loop_cbc_enc128:
+	aese	v0.16b,v16.16b
+	aesmc	v0.16b,v0.16b
+	st1	{v6.16b},[x1],#16
+.Lenter_cbc_enc128:
+	aese	v0.16b,v17.16b
+	aesmc	v0.16b,v0.16b
+	subs	x2,x2,#16
+	aese	v0.16b,v2.16b
+	aesmc	v0.16b,v0.16b
+	csel	x8,xzr,x8,eq
+	aese	v0.16b,v3.16b
+	aesmc	v0.16b,v0.16b
+	aese	v0.16b,v18.16b
+	aesmc	v0.16b,v0.16b
+	aese	v0.16b,v19.16b
+	aesmc	v0.16b,v0.16b
+	ld1	{v16.16b},[x0],x8
+	aese	v0.16b,v20.16b
+	aesmc	v0.16b,v0.16b
+	aese	v0.16b,v21.16b
+	aesmc	v0.16b,v0.16b
+	aese	v0.16b,v22.16b
+	aesmc	v0.16b,v0.16b
+	eor	v16.16b,v16.16b,v5.16b
+	aese	v0.16b,v23.16b
+	eor	v6.16b,v0.16b,v7.16b
+	b.hs	.Loop_cbc_enc128
+
+	st1	{v6.16b},[x1],#16
+	b	.Lcbc_done
+.align	5
+.Lcbc_dec:
+	ld1	{v18.16b},[x0],#16
+	subs	x2,x2,#32		// bias
+	add	w6,w5,#2
+	orr	v3.16b,v0.16b,v0.16b
+	orr	v1.16b,v0.16b,v0.16b
+	orr	v19.16b,v18.16b,v18.16b
+	b.lo	.Lcbc_dec_tail
+
+	orr	v1.16b,v18.16b,v18.16b
+	ld1	{v18.16b},[x0],#16
+	orr	v2.16b,v0.16b,v0.16b
+	orr	v3.16b,v1.16b,v1.16b
+	orr	v19.16b,v18.16b,v18.16b
+
+.Loop3x_cbc_dec:
+	aesd	v0.16b,v16.16b
+	aesimc	v0.16b,v0.16b
+	aesd	v1.16b,v16.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v16.16b
+	aesimc	v18.16b,v18.16b
+	ld1	{v16.4s},[x7],#16
+	subs	w6,w6,#2
+	aesd	v0.16b,v17.16b
+	aesimc	v0.16b,v0.16b
+	aesd	v1.16b,v17.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v17.16b
+	aesimc	v18.16b,v18.16b
+	ld1	{v17.4s},[x7],#16
+	b.gt	.Loop3x_cbc_dec
+
+	aesd	v0.16b,v16.16b
+	aesimc	v0.16b,v0.16b
+	aesd	v1.16b,v16.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v16.16b
+	aesimc	v18.16b,v18.16b
+	eor	v4.16b,v6.16b,v7.16b
+	subs	x2,x2,#0x30
+	eor	v5.16b,v2.16b,v7.16b
+	csel	x6,x2,x6,lo			// x6, w6, is zero at this point
+	aesd	v0.16b,v17.16b
+	aesimc	v0.16b,v0.16b
+	aesd	v1.16b,v17.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v17.16b
+	aesimc	v18.16b,v18.16b
+	eor	v17.16b,v3.16b,v7.16b
+	add	x0,x0,x6		// x0 is adjusted in such way that
+					// at exit from the loop v1.16b-v18.16b
+					// are loaded with last "words"
+	orr	v6.16b,v19.16b,v19.16b
+	mov	x7,x3
+	aesd	v0.16b,v20.16b
+	aesimc	v0.16b,v0.16b
+	aesd	v1.16b,v20.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v20.16b
+	aesimc	v18.16b,v18.16b
+	ld1	{v2.16b},[x0],#16
+	aesd	v0.16b,v21.16b
+	aesimc	v0.16b,v0.16b
+	aesd	v1.16b,v21.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v21.16b
+	aesimc	v18.16b,v18.16b
+	ld1	{v3.16b},[x0],#16
+	aesd	v0.16b,v22.16b
+	aesimc	v0.16b,v0.16b
+	aesd	v1.16b,v22.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v22.16b
+	aesimc	v18.16b,v18.16b
+	ld1	{v19.16b},[x0],#16
+	aesd	v0.16b,v23.16b
+	aesd	v1.16b,v23.16b
+	aesd	v18.16b,v23.16b
+	ld1	{v16.4s},[x7],#16	// re-pre-load rndkey[0]
+	add	w6,w5,#2
+	eor	v4.16b,v4.16b,v0.16b
+	eor	v5.16b,v5.16b,v1.16b
+	eor	v18.16b,v18.16b,v17.16b
+	ld1	{v17.4s},[x7],#16	// re-pre-load rndkey[1]
+	st1	{v4.16b},[x1],#16
+	orr	v0.16b,v2.16b,v2.16b
+	st1	{v5.16b},[x1],#16
+	orr	v1.16b,v3.16b,v3.16b
+	st1	{v18.16b},[x1],#16
+	orr	v18.16b,v19.16b,v19.16b
+	b.hs	.Loop3x_cbc_dec
+
+	cmn	x2,#0x30
+	b.eq	.Lcbc_done
+	nop
+
+.Lcbc_dec_tail:
+	aesd	v1.16b,v16.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v16.16b
+	aesimc	v18.16b,v18.16b
+	ld1	{v16.4s},[x7],#16
+	subs	w6,w6,#2
+	aesd	v1.16b,v17.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v17.16b
+	aesimc	v18.16b,v18.16b
+	ld1	{v17.4s},[x7],#16
+	b.gt	.Lcbc_dec_tail
+
+	aesd	v1.16b,v16.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v16.16b
+	aesimc	v18.16b,v18.16b
+	aesd	v1.16b,v17.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v17.16b
+	aesimc	v18.16b,v18.16b
+	aesd	v1.16b,v20.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v20.16b
+	aesimc	v18.16b,v18.16b
+	cmn	x2,#0x20
+	aesd	v1.16b,v21.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v21.16b
+	aesimc	v18.16b,v18.16b
+	eor	v5.16b,v6.16b,v7.16b
+	aesd	v1.16b,v22.16b
+	aesimc	v1.16b,v1.16b
+	aesd	v18.16b,v22.16b
+	aesimc	v18.16b,v18.16b
+	eor	v17.16b,v3.16b,v7.16b
+	aesd	v1.16b,v23.16b
+	aesd	v18.16b,v23.16b
+	b.eq	.Lcbc_dec_one
+	eor	v5.16b,v5.16b,v1.16b
+	eor	v17.16b,v17.16b,v18.16b
+	orr	v6.16b,v19.16b,v19.16b
+	st1	{v5.16b},[x1],#16
+	st1	{v17.16b},[x1],#16
+	b	.Lcbc_done
+
+.Lcbc_dec_one:
+	eor	v5.16b,v5.16b,v18.16b
+	orr	v6.16b,v19.16b,v19.16b
+	st1	{v5.16b},[x1],#16
+
+.Lcbc_done:
+	st1	{v6.16b},[x4]
+.Lcbc_abort:
+	ldr	x29,[sp],#16
+	ret
+.size	aes_v8_cbc_encrypt,.-aes_v8_cbc_encrypt
+.globl	aes_v8_ctr32_encrypt_blocks
+.type	aes_v8_ctr32_encrypt_blocks,%function
+.align	5
+aes_v8_ctr32_encrypt_blocks:
+	stp	x29,x30,[sp,#-16]!
+	add	x29,sp,#0
+	ldr	w5,[x3,#240]
+
+	ldr	w8, [x4, #12]
+	ld1	{v0.4s},[x4]
+
+	ld1	{v16.4s,v17.4s},[x3]		// load key schedule...
+	sub	w5,w5,#4
+	mov	x12,#16
+	cmp	x2,#2
+	add	x7,x3,x5,lsl#4	// pointer to last 5 round keys
+	sub	w5,w5,#2
+	ld1	{v20.4s,v21.4s},[x7],#32
+	ld1	{v22.4s,v23.4s},[x7],#32
+	ld1	{v7.4s},[x7]
+	add	x7,x3,#32
+	mov	w6,w5
+	csel	x12,xzr,x12,lo
+#ifndef __ARMEB__
+	rev	w8, w8
+#endif
+	orr	v1.16b,v0.16b,v0.16b
+	add	w10, w8, #1
+	orr	v18.16b,v0.16b,v0.16b
+	add	w8, w8, #2
+	orr	v6.16b,v0.16b,v0.16b
+	rev	w10, w10
+	mov	v1.s[3],w10
+	b.ls	.Lctr32_tail
+	rev	w12, w8
+	sub	x2,x2,#3		// bias
+	mov	v18.s[3],w12
+	b	.Loop3x_ctr32
+
+.align	4
+.Loop3x_ctr32:
+	aese	v0.16b,v16.16b
+	aesmc	v0.16b,v0.16b
+	aese	v1.16b,v16.16b
+	aesmc	v1.16b,v1.16b
+	aese	v18.16b,v16.16b
+	aesmc	v18.16b,v18.16b
+	ld1	{v16.4s},[x7],#16
+	subs	w6,w6,#2
+	aese	v0.16b,v17.16b
+	aesmc	v0.16b,v0.16b
+	aese	v1.16b,v17.16b
+	aesmc	v1.16b,v1.16b
+	aese	v18.16b,v17.16b
+	aesmc	v18.16b,v18.16b
+	ld1	{v17.4s},[x7],#16
+	b.gt	.Loop3x_ctr32
+
+	aese	v0.16b,v16.16b
+	aesmc	v4.16b,v0.16b
+	aese	v1.16b,v16.16b
+	aesmc	v5.16b,v1.16b
+	ld1	{v2.16b},[x0],#16
+	orr	v0.16b,v6.16b,v6.16b
+	aese	v18.16b,v16.16b
+	aesmc	v18.16b,v18.16b
+	ld1	{v3.16b},[x0],#16
+	orr	v1.16b,v6.16b,v6.16b
+	aese	v4.16b,v17.16b
+	aesmc	v4.16b,v4.16b
+	aese	v5.16b,v17.16b
+	aesmc	v5.16b,v5.16b
+	ld1	{v19.16b},[x0],#16
+	mov	x7,x3
+	aese	v18.16b,v17.16b
+	aesmc	v17.16b,v18.16b
+	orr	v18.16b,v6.16b,v6.16b
+	add	w9,w8,#1
+	aese	v4.16b,v20.16b
+	aesmc	v4.16b,v4.16b
+	aese	v5.16b,v20.16b
+	aesmc	v5.16b,v5.16b
+	eor	v2.16b,v2.16b,v7.16b
+	add	w10,w8,#2
+	aese	v17.16b,v20.16b
+	aesmc	v17.16b,v17.16b
+	eor	v3.16b,v3.16b,v7.16b
+	add	w8,w8,#3
+	aese	v4.16b,v21.16b
+	aesmc	v4.16b,v4.16b
+	aese	v5.16b,v21.16b
+	aesmc	v5.16b,v5.16b
+	eor	v19.16b,v19.16b,v7.16b
+	rev	w9,w9
+	aese	v17.16b,v21.16b
+	aesmc	v17.16b,v17.16b
+	mov	v0.s[3], w9
+	rev	w10,w10
+	aese	v4.16b,v22.16b
+	aesmc	v4.16b,v4.16b
+	aese	v5.16b,v22.16b
+	aesmc	v5.16b,v5.16b
+	mov	v1.s[3], w10
+	rev	w12,w8
+	aese	v17.16b,v22.16b
+	aesmc	v17.16b,v17.16b
+	mov	v18.s[3], w12
+	subs	x2,x2,#3
+	aese	v4.16b,v23.16b
+	aese	v5.16b,v23.16b
+	aese	v17.16b,v23.16b
+
+	eor	v2.16b,v2.16b,v4.16b
+	ld1	{v16.4s},[x7],#16	// re-pre-load rndkey[0]
+	st1	{v2.16b},[x1],#16
+	eor	v3.16b,v3.16b,v5.16b
+	mov	w6,w5
+	st1	{v3.16b},[x1],#16
+	eor	v19.16b,v19.16b,v17.16b
+	ld1	{v17.4s},[x7],#16	// re-pre-load rndkey[1]
+	st1	{v19.16b},[x1],#16
+	b.hs	.Loop3x_ctr32
+
+	adds	x2,x2,#3
+	b.eq	.Lctr32_done
+	cmp	x2,#1
+	mov	x12,#16
+	csel	x12,xzr,x12,eq
+
+.Lctr32_tail:
+	aese	v0.16b,v16.16b
+	aesmc	v0.16b,v0.16b
+	aese	v1.16b,v16.16b
+	aesmc	v1.16b,v1.16b
+	ld1	{v16.4s},[x7],#16
+	subs	w6,w6,#2
+	aese	v0.16b,v17.16b
+	aesmc	v0.16b,v0.16b
+	aese	v1.16b,v17.16b
+	aesmc	v1.16b,v1.16b
+	ld1	{v17.4s},[x7],#16
+	b.gt	.Lctr32_tail
+
+	aese	v0.16b,v16.16b
+	aesmc	v0.16b,v0.16b
+	aese	v1.16b,v16.16b
+	aesmc	v1.16b,v1.16b
+	aese	v0.16b,v17.16b
+	aesmc	v0.16b,v0.16b
+	aese	v1.16b,v17.16b
+	aesmc	v1.16b,v1.16b
+	ld1	{v2.16b},[x0],x12
+	aese	v0.16b,v20.16b
+	aesmc	v0.16b,v0.16b
+	aese	v1.16b,v20.16b
+	aesmc	v1.16b,v1.16b
+	ld1	{v3.16b},[x0]
+	aese	v0.16b,v21.16b
+	aesmc	v0.16b,v0.16b
+	aese	v1.16b,v21.16b
+	aesmc	v1.16b,v1.16b
+	eor	v2.16b,v2.16b,v7.16b
+	aese	v0.16b,v22.16b
+	aesmc	v0.16b,v0.16b
+	aese	v1.16b,v22.16b
+	aesmc	v1.16b,v1.16b
+	eor	v3.16b,v3.16b,v7.16b
+	aese	v0.16b,v23.16b
+	aese	v1.16b,v23.16b
+
+	cmp	x2,#1
+	eor	v2.16b,v2.16b,v0.16b
+	eor	v3.16b,v3.16b,v1.16b
+	st1	{v2.16b},[x1],#16
+	b.eq	.Lctr32_done
+	st1	{v3.16b},[x1]
+
+.Lctr32_done:
+	ldr	x29,[sp],#16
+	ret
+.size	aes_v8_ctr32_encrypt_blocks,.-aes_v8_ctr32_encrypt_blocks
+#endif
+#endif
\ No newline at end of file
-- 
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